Thank you Rick for clarifying that.
So it looks like one day I should invest in a camera with about 6micron pixels to give me just under 2"pp with my telescope at f/6, I think something like KAF16200 would be nice. I was hoping that I can get a wider FOV with my tiny ICX814 at f/4.5, but such fast f-ratio on a short refractor is a challenge to get spot on in terms of alignment and spacing. And on top of that frequent refocus is needed...I much prefer riding at f/6. Time to start slowly putting some dollars aside for a camera upgrade! LOL
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